New toothbrushes every equinox and solstice.
Wash all fruit and veg as soon as you get home before putting it away.
Big tupperwares in the fridge to separate cheese, meat, cooked items etc. Easy to see what's running out, easy to clean fridge. Same for cupboards with spice jars etc.
Wipe down jars before putting them back in the cupboard or fridge.
If you have storage space, have a bulk buying list of non-perishables and order online once a month. Have another regular shopping list. You can print this out and cross off any items you already have in. Then add specific items wanted for that week. Stick it on the fridge and add anything you run out of as you go.
Buy a can crusher for recycling. Squash plastic bottles flat. Use a separate box for cardboard - squash boxes flat and 'file' them neatly in the box. More recycling in the same space = less emptying the recycling box.
Give everyone their own basket in the bathroom for toiletries and grooming equipment.
If you have regular medicines, use those weekly divider boxes and fill once a week for each person.
Portion out anything you want to freeze so you can take only the amount you need eg chop meat or fish, slice cheese, butter or bread. Divide soup or cooked dishes into tupperware or recycled containers, then once frozen remove from container and transfer to a single large ziploc and label.
Roast a whole bag of frozen onions at once, freeze in portions to use in recipes.
Get a salad spinner.
Get a show rack or shoe pegs for the hall.
Serve a platter of veg sticks while cooking dinner so hungry people will eat vegetables. You can also serve salad or veg soup as a first course to enhance vitamin consumption.
To remove limescale, soak a rag or newspaper in vinegar and wrap around taps, soak shower head in vinegar water.
Soak any dirty or greasy fabric like napkins in soda crystals or borax substitute before washing.
Put one of those tiny fold-up silk shopping bags in your handbag.
Keep a few quid in the glove box for parking - replenish when your purse is full of change.